Critical properties of non-spherical molecule fluids from virial expansion |
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Authors: | JIŘÍ JANEČEK TOMÁŠ BOUBLÍK |
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Institution: | Department of Physical and Macromolecular Chemistry, Faculty of Science , Charles University , 12840, Prague 2, Czech Republic |
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Abstract: | For systems of Kihara molecules with circular cores, the values of the reduced critical constants were determined from the fourth-order virial expansion as functions of the core diameter/thickness ratio. From expressions for the reduced functions both for the oblate and prolate shapes, the values of critical constants of four cyclic hydrocarbons and four branched alkanes were evaluated and compared with the experimental data and values obtained from the perturbation theory. |
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